4 ms·
No because this was not a self-selected group. It was people with no regular history of cold showering. My money’s on placebo effect here.
by abalone 9y ago
No because this was not a self-selected group. It was people with no regular history of cold showering. My money’s on placebo effect here.
- SilasX 9y agoRight but people would be excluded from the study if they found the cold showers too grueling and wanted out.